Railway draft appliances – Cushioned – Springs
Patent
1996-05-01
1998-05-05
Le, Mark T.
Railway draft appliances
Cushioned
Springs
188312, 213 45, B61G 700
Patent
active
057463352
ABSTRACT:
A double acting center-of-car cushioning device mounted in the sliding sill of a rail car includes two pistons and rods, two pressure cylinders and mirror image sets of flow orifices in the pressure cylinders. The piston rods extend out from ends of the pressure cylinders and engage a fixed sill of the rail car. Movement of the pistons within the pressure cylinders forces fluid through the flow orifices resulting in efficient dampening.
REFERENCES:
patent: 875021 (1907-12-01), Westbrook
patent: 1064214 (1913-06-01), Herman
patent: 1094994 (1914-04-01), Hufford
patent: 1151068 (1915-08-01), Van Auken
patent: 1273059 (1918-07-01), Hild
patent: 1494135 (1924-05-01), Robison et al.
patent: 2029829 (1936-02-01), Messier
patent: 2557274 (1951-06-01), Geisse
patent: 2752048 (1956-06-01), Fillion
patent: 2811264 (1957-10-01), Gray
patent: 2814364 (1957-11-01), Lowe
patent: 2915198 (1959-12-01), Spenceer
patent: 2917303 (1959-12-01), Vierling
patent: 2965246 (1960-12-01), Guins
patent: 2973102 (1961-02-01), Nystorm
patent: 2992815 (1961-07-01), Ellis, Jr.
patent: 3006483 (1961-10-01), Baillie et al.
patent: 3163300 (1964-12-01), Settles
patent: 3186562 (1965-06-01), Angold
patent: 3215229 (1965-11-01), Bunnell
patent: 3221898 (1965-12-01), Pellnitz
patent: 3237574 (1966-03-01), Smith et al.
patent: 3307883 (1967-03-01), Wustenhagen et al.
patent: 3344894 (1967-10-01), Kenworthy
patent: 3361269 (1968-01-01), Peterson
patent: 3368697 (1968-02-01), Carlson
patent: 3369674 (1968-02-01), Carle
patent: 3379319 (1968-04-01), Stasieluk
patent: 3731914 (1973-05-01), Cope et al.
patent: 3749255 (1973-07-01), Cope
patent: 3776391 (1973-12-01), Hawthorne
patent: 3843107 (1974-10-01), Atkins
patent: 3851768 (1974-12-01), Hawthorne
patent: 3913748 (1975-10-01), Carle
patent: 4026418 (1977-05-01), Hawthorne
patent: 4154461 (1979-05-01), Schnittger
patent: 4304338 (1981-12-01), Carle et al.
patent: 4413817 (1983-11-01), Bich
patent: 4557696 (1985-12-01), Nakahama
patent: 4739889 (1988-04-01), Bomgardner
patent: 4741085 (1988-05-01), Bomgardner
patent: 4756512 (1988-07-01), Toms, Jr.
patent: 5323884 (1994-06-01), Machino
patent: 5361706 (1994-11-01), Kunczynski
patent: 5388711 (1995-02-01), Hodges
patent: 5415303 (1995-05-01), Hodges et al.
Keystone Railway Equipment Co., "Keystone Shock Control," 1966, pp. 1-8.
Keystone Railway Equipment Co., "Keystone Shock Control Hydraulic Cushioned Underframe"(no date).
Keystone Railway Equipment Company, "Keystone G & GR Series End-of-Car Cushion Units"(no date).
Keystone Railway Equipment Company, Keystone SA-Soms Single Acting Center-of-Car Cushion Unit, Jan. 1990.
Keystone Railway Equipment Company, "Model SA and SA-MS Inspection and Maintenance" (no date).
Brough Steve A.
Deppen John F.
Hooker, P.C. Thomas
Keystone Industries Inc.
Le Mark T.
LandOfFree
Double acting center-of-car cushioning device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Double acting center-of-car cushioning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double acting center-of-car cushioning device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-46783